V. Climente

Publications (2)0 Total impact

• Conference Proceeding: Case Histories in large motors: Diagnosis of electromechanical faults through extraction of characteristic components during the startup

  J.A. Antonino-Daviu, J. Rusek, M. Riera-Guasp, J. Roger-Folch, V. Climente
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  ABSTRACT: The aim of the paper is to show several case histories regarding the diagnosis of rotor asymmetries and other faults in large induction motors. These are motors under real operation in power generating installations. Two different approaches are used for the diagnosis of the machine condition. Both of them are based on the study of the startup transient of the machine and the extraction of characteristic patterns caused by the evolution during the transient of certain components dependant on the slip. The results show the validity of both diagnosis methods. Special interest has the use of the discrete wavelet transform for the detection and discrimination of different faults. Its validity was already proved by the authors in previous works but in small motors. The results show the potentiality of the approaches for the diagnosis of the condition of a wide range of motors.
  Diagnostics for Electric Machines, Power Electronics and Drives, 2007. SDEMPED 2007. IEEE International Symposium on; 10/2007
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  Available from: aedie.org

  Article: Study of the startup transient for the diagnosis of broken bars in induction motors: A review

  J A Antonino, M Riera, J Roger-Folch, V Climente
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  ABSTRACT: The aim of this paper is to develop a review of the different hitherto proposed methods, that are based on the analysis of currents for the diagnosis of rotor failures in induction motors. Firstly, the paper focuses on the classical methods, based on the study of currents in steady state, which have been deeply studied during the last years. Afterwards, some new approaches that are based on the study of the transient processes of the machine are analysed, mainly those focused on the study of the current during the startup. In this sense, it is specially remarked a new approach recently introduced by the authors for the diagnosis of rotor bar breakages through the analysis of the startup current using the wavelet theory. The advantages of this alternative approach are discussed in the paper showing the interest of this method.